Dell XPS 15 (L501X, Late 2010) - Manual (Page 40)

40 Hard Drive
4 Remove the four screws that secure the hard-drive assembly to the
computer base.
5 Slide the hard-drive assembly to the side to disconnect it from the system
board connector.
6 Lift the hard-drive assembly out of the hard-drive bay.
7 Remove the four screws that secure the hard-drive bracket to the hard
drive.
8 Lift the hard-drive bracket off the hard drive.
1 hard-drive assembly 2 screws (4)
2
1